Cable television network with upstream path

摘要

The method involves transmitting a signal in a link between an upstream branch and several downstream branches. The link includes an transmitter which produces a sequence of messages in the form of an electrical signal. Part of the signal is passed along a downstream branch. A signal received downstream is recorded in a reception memory and a recognition code is provided. The received messages and locally generated messages are transmitted from upstream in a given sequence, with the local messages last. This sequence is repeated.